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UNITED STATES PATENT OFFICE.

HERBERT C. WIRT, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE GENERALELECTRIC COMPANY, OF SAME PLACE.

WALL-SOCKET FOR INCANDESCENT LAMPS.

SPECIFICATION forming part of Letters Patent No. 497,849, dated May 23,1893.

Application filed March '7, 1892.

To all whom it may concern.-

Be it known that I, HERBERT (J. WIRT, a citizen of the United States,residing at Boston, in the county of Sufiolk and State ofMassachusetts,have invented certain newand useful Improvements inWall-Sockets for Incandescent Lamps, of which the following is aspecification.

The present invention relates to a wall socket for receiving andsupportingincandescent electric lamps, and the object of the inventionis to provide such a socket made of as few parts as possible, whichconsequently will be durable and cheaply manufactured.

In the accompanying drawings, Figure lis a plan view of the socket. Fig.2 isa bottom View, and Fig. 3 a vertical sectional view of the same.

The socket consists of an insulating support D, molded in a singlepiece, and usually made of glass or porcelain. The shape of this supportis that best seen in Fig. 3 of the drawings, where it will be observedthat it has a rear chamber B, the walls of which, E, have fiat outerends adapted to rest upon the wall or ceiling of a room, or likesupport, and be secured thereto by screws, for which holes d areprovided. The support has also a front chamber A, shaped to receive theneck of the lamp. To complete the lamp circuit, contacts P, P areprovided, which are secured to the insulating base by screws or studs 6,and which extend out from the rear chamber through slots a, b,cut in thewalls of the chamber, and terminate at their outer ends in clips 0, forreceiving and making contact with the line wires Q. The insulatingsupport has also a central partition R, separating the inner and outerchambers, and the contacts Phave their inner ends turned at a rightangle forming offsets 'r, 0", which project through openings in thepartition into the lamp chamber A. One of these offsets ris shownscrew-threaded, while the other 1" has a smooth face. The lamp terminalswill engage the offsets 1', r,

Serial No. 423,981. (No model.)

as is customary in the art, and one of them will consist of ascrew-threaded ring which screws on to the offset '2", so that the lampwill thereby also be held in place in the socket.

What I claim as new, and desire to secure by Letters Patent, is

1. A wall socket for incandescent lamps consisting of a support ofinsulating material, having front and rear chambers separated by a webor partition forming a base, and contacts formed in a single pieceextending through the partition and having at theirout-er ends Wireengaging clips to which the circuit wires are adapted to be readilyconnected, and their inner ends ending in terminals to which the lamp isattached and mechanically supported, and by which the lamp circuit iscompleted, as described.

2. A wall socket for incandescent lamps consisting of an insulatingsupport having front and rear chambers A, B, and having the wall of therear chamber slotted and contacts extending out through such slots andprovided at their outer ends with external wire engaging clips, andhaving their inner ends extending into the lamp or frontchamber andsupporting the lamp, as described.

3. A wall socket for incandescent lamps, consisting of an insulatingsupport having a chamber B, the walls of which are slotted, as at a, b,and a chamber A shaped to receive the lamp, but separated from chamber Bby a partition R, and contacts fitted in slots a, I), having externalwire engaging clips at their outer ends, and at their inner ends offsetsextending through the partition R into the lamp chamber, and thereadapted to engage with the lamp terminals and support the lamp, asdescribed.

In witness whereof I have hereunto set my hand this 19th day ofFebruary, 1892.

HERBERT C. WIRT.

\Vitnesses:

O. L. HAYNES, H. J. LIVERMORE.

